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Luminance / Radiance

Optic probes for measuring luminance and radiance. Connect with any of our spectroradiometers.

Optic probes for measuring radiance or irradiance

To be able to match the best optical probe to customer’s needs, it is important to know what the client has to measure, which quantities he needs to deliver, how wide a spectral range he has to measure in and which measuring point diameter he will be satisfied with.
GL Optic offers variety of optical probes for radiometric measurements. They differ in spectral range, degree of cosine correction and a type of optic fiber.

Ready-set-go

Each complete set includes a measuring probe, a fiber optic cable, and adapter for a dedicated spectrometer. Includes calibration traceable to national laboratories.

Smart detection

All GL Optic Spectrometers include smart system of detection that automatically detects a new probe and loads the appropriate calibration file.

Extended spectral range

Constructed of high transmission quartz fiber optics, these optical probes can cover a broad spectral range from UV to NIR (200-1050 nm).

GL OPTI PROBE 1.0.10 Luminance Usage

This accessory is intended for measuring luminance [cd/m2] of flat LCD and OLED panels and plasma FPDs. Typical devices to be tested are: television screens, computer monitors, avionics displays and other electronic displays and where there is a need to measure reflective surfaces – also walls and workplaces, projection screens and signs.
This optic probe measures the light emitted in a particular direction by a given spot on the surface of a relatively large or extended source. The measuring probe can be installed on a tripod for distance measurements or directly on a screen with the use of a special stripe for contact measurements. The optic probe connects to GL SPECTIS 1.0 or GL SPECTIS 1.0 Touch. The probe comes with polymer fiber optic cable. Usable spectral range: 400-730 nm.

GL OPTI PROBE 1.0.10 Luminance Specifications

Measuring point diameter10 mm
Spot sizein 1 m distance – approx. 5 cm
Spectral range400–730 nm (may be affected by spectrometer used)
Measuring probe size44 mm x 62 mm x 14 mm
Type of fiber optic cablePolymer
Fiber optic cable diameter⌀1.0 mm
Fiber optic cable length1.5 m
Measurement uncertainty(x,y) +/- 0.002
Note: Instrument, firmware and software specification are subject to change without prior notice. All information included in GL OPTIC datasheets and product information available in any form are carefully prepared and included information believed to be true. Please note that discrepancies may occur due to text and/or other errors or changes in the available technology. We advise to contact GL Optic before the use of the product to obtain the latest product specification.

GL OPTI PROBE 1.0.11 Luminance Usage

This optic probe has a pen shape with just 1 mm measuring point diameter and comes with a flexible fiber optic cable. It is especially useful when it is necessary to measure small areas. The optic probe connects to GL SPECTIS 1.0 or GL SPECTIS 1.0 Touch.
This accessory is intended for measuring luminance [cd/m2] of flat LCD and OLED panels and plasma FPDs. Typical devices to be tested are: signal indicators, avionics and other electronic displays. This optic probe measures the light emitted in a particular direction by a given spot on the surface. The probe comes with polymer fiber optic cable. Usable spectral range: 400-730 nm.

GL OPTI PROBE 1.0.11 Luminance Specifications

Measuring point diameter⌀1.0 mm
Spot sizein 5 mm distance – approx. 3.25 mm
Spectral range400–730 nm (may be affected by spectrometer used)
Measuring probe size⌀7 x 60 mm
Type of fiber optic cablePolymer
Fiber optic cable diameter⌀1.0 mm
Fiber optic cable length1.5 m
Measurement uncertainty(x,y) +/- 0.002
Note: Instrument, firmware and software specification are subject to change without prior notice. All information included in GL OPTIC datasheets and product information available in any form are carefully prepared and included information believed to be true. Please note that discrepancies may occur due to text and/or other errors or changes in the available technology. We advise to contact GL Optic before the use of the product to obtain the latest product specification.

GL OPTI PROBE 1.0.12 Luminance Usage

Luminance measuring telescope with optic fiber ensures perfectly parallel beam of observation. Can be fitted on tripod. Spot diameter 8 mm at distance 0.5 m. Spectral range 400-1050 nm.
Luminance measuring telescope ensures perfectly parallel beam of observation. For measurement of flat displays, LCD, LED and OLED panels and other projection displays. The set includes a measuring probe, a fiber optics as well as an adapter with a coder for GL SPECTIS 1.0 spectrometers. Probe can be fitted on tripod.

GL OPTI PROBE 1.0.12 Luminance Specifications

Standard testing range (dynamic)
for GL SPECTIS 1.0, GL SPECTIS 1.0 Touch
2 cd/m² … 1 500 cd/m²
Angle of view0° (quasi-parallel beam)
Focus distance500 mm
Measuring point diameterØ 8 mm
Measuring probe size53 x 90 x 40 mm
Type of fiber optic cablePolymer
Fiber optic cable diameterØ 1.0 mm
Fiber optic cable length1.5 m
Measurement uncertainty(x.y) ± 0.002
Tripod adapterBSW ¼”
Note: Instrument, firmware and software specification are subject to change without prior notice. All information included in GL OPTIC datasheets and product information available in any form are carefully prepared and included information believed to be true. Please note that discrepancies may occur due to text and/or other errors or changes in the available technology. We advise to contact GL Optic before the use of the product to obtain the latest product specification.

GL OPTI PROBE 5.0.10 Luminance Usage

Luminance probe for point measurement of flat displays, LCD, LED, OLED panels, projection displays and indicating lights. The set includes a measuring probe, quartz fiber optics and an adapter with a coder for GL SPECTIS 1.0 series spectrometer as well as a counterweight with a strap for hanging over the measured screen.
The frame of the probe is ready to accept a standard photographic tripod. This probe covers the full spectral range from UV to IR within the range of the used spectrometer. N.A.=0.20.

GL OPTI PROBE 5.0.10 Luminance Specifications

Measuring point diameter10 mm
Spot sizein 1 m distance – approx. 5 mm
Spectral range340–780 nm (may be affected by spectrometer used)
Measuring probe size44 mm x 62 mm x 14 mm
Type of fiber optic cableQuartz
Fiber optic cable diameter⌀1.0 mm
Fiber optic cable length1.5 m
Measurement uncertainty(x,y) +/- 0.002
Note: Instrument, firmware and software specification are subject to change without prior notice. All information included in GL OPTIC datasheets and product information available in any form are carefully prepared and included information believed to be true. Please note that discrepancies may occur due to text and/or other errors or changes in the available technology. We advise to contact GL Optic before the use of the product to obtain the latest product specification.

GL OPTI PROBE 5.0.51 Luminance Usage

Pen type luminance probe for point measurement of flat displays, LCD, LED OLED panels, projection displays and indicating lights. The set includes a measuring probe, quartz fiber optics as well as an adapter with a coder for GL SPECTIS 5.0, 6.0 and 8.0 spectrometers. This probe covers the full spectral range from UV to IR within the range of the used spectrometer. N.A.=0.20.

GL OPTI PROBE 5.0.51 Luminance Specifications

Measuring point diameter⌀ 1.0 mm
in 1 m distance – approx. 5 mm
200–1050 nm (may be affected by spectrometer used)
Measuring probe size⌀11 x 100 mm
Type of fiber optic cableQuartz
Fiber optic cable diameter⌀1.0 mm
Fiber optic cable length1.5 m
Measurement uncertainty(x,y) +/- 0.002
Note: Instrument, firmware and software specification are subject to change without prior notice. All information included in GL OPTIC datasheets and product information available in any form are carefully prepared and included information believed to be true. Please note that discrepancies may occur due to text and/or other errors or changes in the available technology. We advise to contact GL Optic before the use of the product to obtain the latest product specification.

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